Datasheet LTC3315A (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Dual 5V, 2A Synchronous Step-Down DC/DCs in 2mm × 2mm LQFN |
| 页数 / 页 | 22 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.3V, unless … |
| 文件格式/大小 | PDF / 1.6 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.3V, unless otherwise noted. Efficiency vs ILOAD,
文件文字版本
LTC3315A
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.3V, unless otherwise noted. Efficiency vs ILOAD, Efficiency vs ILOAD, Efficiency vs ILOAD, VOUT = 1.8V, VIN = 2.25V VOUT = 1.8V, VIN = 3.3V VOUT = 1.8V, VIN = 5.5V
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 50 50 50 fSW = 2MHz fSW = 2MHz fSW = 2MHz 40 L = 1µH 40 L = 1µH 40 L = 1µH EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 30 L DCR = 20mΩ 30 L DCR = 20mΩ 30 L DCR = 20mΩ 20 BURST MODE 20 BURST MODE 20 BURST MODE 10 PULSE SKIP 10 PULSE SKIP 10 PULSE SKIP FORCED CONTINUOUS FORCED CONTINUOUS FORCED CONTINUOUS 0 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3315ab G25 3315ab G26 3315ab G27
Efficiency vs ILOAD, Efficiency vs ILOAD, VOUT = 2.5V, VIN = 3.3V VOUT = 2.5V, VIN = 5.5V
100 100 90 90 80 80 70 70 60 60 50 50 fSW = 2MHz fSW = 2MHz 40 L = 1.2µH 40 L = 1.2µH EFFICIENCY (%) EFFICIENCY (%) 30 L DCR = 23mΩ 30 L DCR = 23mΩ 20 BURST MODE 20 BURST MODE 10 PULSE SKIP 10 PULSE SKIP FORCED CONTINUOUS FORCED CONTINUOUS 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) 3315ab G28 3315ab G29
Efficiency vs ILOAD, Efficiency vs ILOAD, VOUT = 3.3V, VIN = 4.2V VOUT = 3.3V, VIN = 5.5V
100 100 90 90 80 80 70 70 60 60 50 50 fSW = 2MHz fSW = 2MHz 40 L = 1.2µH 40 L = 1.2µH EFFICIENCY (%) EFFICIENCY (%) 30 L DCR = 23mΩ 30 L DCR = 23mΩ 20 BURST MODE 20 BURST MODE 10 PULSE SKIP 10 PULSE SKIP FORCED CONTINUOUS FORCED CONTINUOUS 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) 3315ab G30 3315ab G31 Rev. 0 For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.3V, unless otherwise noted. Efficiency vs ILOAD, Efficiency vs ILOAD, Efficiency vs ILOAD, VOUT = 1.8V, VIN = 2.25V VOUT = 1.8V, VIN = 3.3V VOUT = 1.8V, VIN = 5.5V
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 50 50 50 fSW = 2MHz fSW = 2MHz fSW = 2MHz 40 L = 1µH 40 L = 1µH 40 L = 1µH EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 30 L DCR = 20mΩ 30 L DCR = 20mΩ 30 L DCR = 20mΩ 20 BURST MODE 20 BURST MODE 20 BURST MODE 10 PULSE SKIP 10 PULSE SKIP 10 PULSE SKIP FORCED CONTINUOUS FORCED CONTINUOUS FORCED CONTINUOUS 0 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3315ab G25 3315ab G26 3315ab G27
Efficiency vs ILOAD, Efficiency vs ILOAD, VOUT = 2.5V, VIN = 3.3V VOUT = 2.5V, VIN = 5.5V
100 100 90 90 80 80 70 70 60 60 50 50 fSW = 2MHz fSW = 2MHz 40 L = 1.2µH 40 L = 1.2µH EFFICIENCY (%) EFFICIENCY (%) 30 L DCR = 23mΩ 30 L DCR = 23mΩ 20 BURST MODE 20 BURST MODE 10 PULSE SKIP 10 PULSE SKIP FORCED CONTINUOUS FORCED CONTINUOUS 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) 3315ab G28 3315ab G29
Efficiency vs ILOAD, Efficiency vs ILOAD, VOUT = 3.3V, VIN = 4.2V VOUT = 3.3V, VIN = 5.5V
100 100 90 90 80 80 70 70 60 60 50 50 fSW = 2MHz fSW = 2MHz 40 L = 1.2µH 40 L = 1.2µH EFFICIENCY (%) EFFICIENCY (%) 30 L DCR = 23mΩ 30 L DCR = 23mΩ 20 BURST MODE 20 BURST MODE 10 PULSE SKIP 10 PULSE SKIP FORCED CONTINUOUS FORCED CONTINUOUS 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) 3315ab G30 3315ab G31 Rev. 0 For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts